Sure - there are 3d-effect backgrounds available currently. Apple offers this as an OS feature since iOS 7: Parallax / Perspective Zoom for wallpaper. https://w

Sure - there are 3d-effect backgrounds available currently. Apple offers this as an OS feature since iOS 7: Parallax / Perspective Zoom for wallpaper. https://www.wired.com/2013/09/parallax-and-the-ios-7-wallpaper/ https://www.wired.com/2013/09/parallax-and-the-ios-7-wallpap... Adding in Selfie-cam eye tracking should be relatively doable too. Could then be added to an app, a game, or to the UI layer of a phone.